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#include <iostream>
#include "Config.h"
#include <stack>
#include "Global.h"
#include "interface/Window.h"
#include "interface/Platform.h"
#include "interface/Engine.h"
#include "Graphics.h"
using namespace ui;
using namespace std;
Engine::Engine():
state_(NULL),
mousex_(0),
mousey_(0),
mousexp_(0),
mouseyp_(0),
FpsLimit(60.0f),
windows(stack<Window*>()),
lastBuffer(NULL),
prevBuffers(stack<pixel*>())
{
}
Engine::~Engine()
{
if(state_ != NULL)
delete state_;
//Dispose of any Windows.
while(!windows.empty())
{
delete windows.top();
windows.pop();
}
}
void Engine::Begin(int width, int height)
{
//engine is now ready
running_ = true;
width_ = width;
height_ = height;
}
void Engine::Exit()
{
running_ = false;
}
void Engine::ShowWindow(Window * window)
{
if(window->Position.X==-1)
{
window->Position.X = (width_-window->Size.X)/2;
}
if(window->Position.Y==-1)
{
window->Position.Y = (height_-window->Size.Y)/2;
}
if(state_)
{
if(lastBuffer)
{
prevBuffers.push(lastBuffer);
}
lastBuffer = (pixel*)malloc((width_ * height_) * PIXELSIZE);
g->fillrect(0, 0, width_, height_, 0, 0, 0, 100);
memcpy(lastBuffer, g->vid, (width_ * height_) * PIXELSIZE);
windows.push(state_);
}
state_ = window;
}
void Engine::CloseWindow()
{
if(!windows.empty())
{
if(!prevBuffers.empty())
{
lastBuffer = prevBuffers.top();
prevBuffers.pop();
}
else
{
free(lastBuffer);
lastBuffer = NULL;
}
state_ = windows.top();
windows.pop();
}
else
{
state_ = NULL;
}
}
/*void Engine::SetState(State * state)
{
if(state_) //queue if currently in a state
statequeued_ = state;
else
{
state_ = state;
if(state_)
state_->DoInitialized();
}
}*/
void Engine::SetSize(int width, int height)
{
width_ = width;
height_ = height;
}
void Engine::Tick(float dt)
{
if(state_ != NULL)
state_->DoTick(dt);
/*if(statequeued_ != NULL)
{
if(state_ != NULL)
{
state_->DoExit();
delete state_;
state_ = NULL;
}
state_ = statequeued_;
statequeued_ = NULL;
if(state_ != NULL)
state_->DoInitialized();
}*/
}
void Engine::Draw()
{
if(lastBuffer && !(state_->Position.X == 0 && state_->Position.Y == 0 && state_->Size.X == width_ && state_->Size.Y == height_))
{
memcpy(g->vid, lastBuffer, (width_ * height_) * PIXELSIZE);
}
else
{
g->Clear();
}
if(state_)
state_->DoDraw();
g->Blit();
}
void Engine::onKeyPress(int key, bool shift, bool ctrl, bool alt)
{
if(state_)
state_->DoKeyPress(key, shift, ctrl, alt);
}
void Engine::onKeyRelease(int key, bool shift, bool ctrl, bool alt)
{
if(state_)
state_->DoKeyRelease(key, shift, ctrl, alt);
}
void Engine::onMouseClick(int x, int y, unsigned button)
{
if(state_)
state_->DoMouseDown(x, y, button);
}
void Engine::onMouseUnclick(int x, int y, unsigned button)
{
if(state_)
state_->DoMouseUp(x, y, button);
}
void Engine::onMouseMove(int x, int y)
{
mousex_ = x;
mousey_ = y;
if(state_)
{
state_->DoMouseMove(x, y, mousex_ - mousexp_, mousey_ - mouseyp_);
}
mousexp_ = x;
mouseyp_ = y;
}
void Engine::onMouseWheel(int x, int y, int delta)
{
if(state_)
state_->DoMouseWheel(x, y, delta);
}
void Engine::onResize(int newWidth, int newHeight)
{
SetSize(newWidth, newHeight);
}
void Engine::onClose()
{
if(state_)
state_->DoExit();
}
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